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A self-cleaning color solar heat reflective coating

A technology of reflective coatings and solar heat, applied in the direction of reflection/signal coatings, multi-color effect coatings, anti-fouling/underwater coatings, etc., can solve problems such as single color, inability to meet individual needs, and reduced ability to reflect solar radiation , achieve high solar heat reflectivity, excellent infrared reflection energy, and enhance the effect of secondary reflection

Active Publication Date: 2018-08-21
太原市誉远涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, white heat-reflective and heat-insulating coatings are more common in the market, which can achieve better heat-reflecting effects, but on the one hand, only using white coatings will lead to a single color, which will affect the aesthetics and cannot meet individual needs, and most of the military applications White paint is also not suitable; on the other hand, white heat-reflective heat-insulating coatings mainly reflect visible light (400-750 nanometers) and have relatively low reflectivity to near-infrared (750-2500 nanometers). The heat in the near-infrared band accounts for 53%, which cannot be ignored
[0005] In addition, since the paint layer needs to be exposed to the natural environment for a long time, if dust and oil stains adhere to the paint surface, it will not only affect the appearance, but also greatly reduce the ability to reflect solar radiation
If it is manually cleaned, it is time-consuming and labor-intensive, especially difficult for tall buildings
Most of the existing solar heat reflective coatings cannot keep the surface clean for a long time, which accelerates the attenuation of the heat insulation temperature difference and affects the efficiency of reflecting solar energy. This problem greatly hinders the promotion and sales of heat reflective heat insulation coatings

Method used

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  • A self-cleaning color solar heat reflective coating
  • A self-cleaning color solar heat reflective coating
  • A self-cleaning color solar heat reflective coating

Examples

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Effect test

preparation example Construction

[0038] According to the present invention, the preparation method of the solar heat reflective paint finish may include: mixing and stirring each component in the finish paint composition, and then filtering, and the filtrate obtained by filtering is the solar heat reflective paint top coat.

[0039] According to a preferred embodiment of the present invention, the preparation method of the solar heat reflective paint topcoat may include: putting fluorocarbon resin and organic solvent into a dispersion tank for stirring, and sequentially stirring at a speed of 300-500 rpm. Put in dispersant, titanium dioxide, near-infrared reflective pigment, defoamer, increase the speed to 1500 rpm, disperse at high speed for 1.5-2 hours, use a scraper fineness meter to detect the fineness below 30 microns, and reduce the speed to 300 rpm, then add leveling agent, anti-settling agent and superhydrophobic agent, stir evenly, then filter, and the filtrate obtained by filtering is the solar heat...

Embodiment 1

[0049] 100 parts by weight of fluorocarbon resin (purchased from Changshu Sanaifu Zhonghao Chemical New Material Co., Ltd., brand JF-2X) and 20 parts by weight of organic solvent xylene (purchased from Shanxi Xinhai Chemical Co., Ltd., brand xylene) Drop into the dispersing tank and stir, and the content of dispersing agent (purchased from German BYK Chemical Co., Ltd., brand BYK142) is successively dropped into 2 parts by weight at a speed of 500 rpm, and the average particle size is rutile titanium dioxide of 0.7 microns (purchased from Japan TAYCA company, brand TITANIX JR-1000) 40 parts by weight, 4 parts by weight of near-infrared reflective pigment iron chromium black (purchased from TOMATEC company, brand 42-7 series), defoamer (purchased from Deqian Chemical Co., Ltd. company, brand 5800) content is 0.2 parts by weight, turn up the rotating speed to 1500 rev / min, disperse at a high speed for 1.5 hours, detect the fineness to below 30 microns with a scraper fineness mete...

Embodiment 2

[0052] 100 parts by weight of fluorocarbon resin (purchased from Changshu Sanaifu Zhonghao Chemical New Material Co., Ltd., brand JF-2X), xylene (purchased from Shanxi Xinhai Chemical Co., Ltd., brand xylene): n-butyl acetate (purchased from Jiangsu Sanmu Chemical Co., Ltd., brand n-butyl acetate): the weight ratio of ethylene glycol ether acetate (purchased from Jiangsu Sanmu Chemical Co., Ltd., brand ethylene glycol ether acetate) is 1:0.8:1 30 parts by weight of the mixed organic solvent is dropped into the dispersing tank and stirred, and 3 parts by weight of dispersant (purchased from German BYK Chemical Co., Ltd., brand BYK142) are successively dropped into at a speed of 500 rpm, and the average particle diameter of 45 parts by weight is 0.9 micron rutile titanium dioxide (purchased from Japan TAYCA company, brand TITANIX JR-1000), 10 parts by weight of near-infrared reflective pigment titanium nickel yellow (purchased from TOMATEC company, brand 42-7 series), 0.6 parts b...

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Abstract

Self-cleaning colorized solar heat reflecting coating is disclosed. The coating comprises a top coating composition and a primer composition. The top coating composition comprises fluorocarbon resin, titanium dioxide, near-infrared reflection pigment, an anti-settling agent, a defoamer, a dispersant, a levelling agent, a super-hydrophobic agent and an organic solvent. The primer composition comprises the fluorocarbon resin, the titanium dioxide, silicon dioxide aerogel, the anti-settling agent, the defoamer, the dispersant, the levelling agent, and the organic solvent. The coating can effectively reflect solar heat radiation and has a good self-cleaning property.

Description

technical field [0001] The invention relates to the field of fine chemical industry, in particular to a self-cleaning colored solar heat reflection paint. Background technique [0002] Most of the energy on earth comes from the sun. Coal, oil, natural gas, water energy, wind energy, biomass energy, etc. all come directly or indirectly from solar energy, and the sun is a necessary condition for human production and life. my country is particularly rich in solar energy resources. The solar energy radiated to the surface of objects is about 750 watts per square meter, and the areas with an annual cumulative sunshine time of more than 2,200 hours exceed 60% of my country's land area. But strong solar radiation will bring a lot of inconvenience to industrial production and human life at the same time. After long-term continuous irradiation by the sun, the energy on the surface of the object continues to accumulate, and the temperature rises significantly. Even in summer, the su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/12C09D5/16C09D5/29C09D5/33C09D7/61
Inventor 申卉
Owner 太原市誉远涂料有限公司
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